Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lap khoa can snippets" » "lao khoa can snippets", "la khoa can snippets", "luan khoa can snippets", "lap khoa cam snippets", "lap khoa cap snippets", "lap khoi can snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("lap khoa can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lap khoa can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lap khoa can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lap khoa can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.